.ant-menu-item{
    border-radius: 0 !important;
}
.ant-card-body {
    padding: 10px !important;
}
.ant-layout-content {
    padding: 10px !important;
}

.ant-spin.ant-spin-spinning {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    margin: auto;
}
.ant-spin-dot-holder {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}


.ant-input::-webkit-input-placeholder {
    font-size: 12px; /* 根据需要调整大小 */
    color: #999; /* 可以调整placeholder的颜色 */
  }